Embossing-machine.



W. B. WAIT.

EMBOSSING MACHINE.

APPLICATION FILED NOV. 18, 1912.

Patented Sept. 22, 1914,

3. Mail IHr. NORR.'S PETERS ca. PHOIO-LITHO. WAsHlNum/v. 0. I:v

B. warn-or NEW YORK, n. Y.

nMnossInG-MAonINn.

Specification of Letters Patent. -Pa,tented Sept. 22, 1914.

Application filed November 18, 1912. Serial no. 732,079.

To allwhomz'tntag] concern.

' "Be it known that IQWILLLAM B. WAIT, a citizen of the United States, residing at New York, county of New York, State of New York, have inventednew and useful Improvements in Embossing -Mac'nines, of which the following 1s a specification. v v This l'nventlon relates to an embossing machine which is essentially adapted for embossing characters on a, sheet of paper for reading by the blind.

The invention consists inthe novel method of arranging the cylinders whereby theem bo'ssing process iscacceleratcd, and the sheet kept in perfect time with the cylinders. The machine has a pair of cylinders which [are preferably positioned in a row, and each cyl-j inder has elevations. and depressions on.

which is fitted; a 'plateor plates provided with the embossed characters; The plates have elevations and depressions corresponding to the shape of the cylinder and the ele-j l vation of one plate is opposite the depression of the plate on the succeeding cylinder. The

depressions .or channels in the plates, are preferably filled with elastic material so that ].the impressions made by the plates on the sheet of paper will be produced and protected. e I :In a machine designed like the foregoing the isheet is fed between the two cylinders and both sides thereof are simultaneously 7 embossed. Both "cylinders are of the same diameter and are rotated at the same speed so that the paper willfbe uniformlyded.

therebetween. I y

The novel details of the invention are more fully described in the following speci fication and claim and illustrated in i the accompanying drawings in which:

Figure 1 represents aside elevation of an embossing press embodying this invention. Fig. 2 is a plan view of a portion of the em:

bossing cylinders showing the embossing plates removed. Fig. 3 is a detail vertical section of a cylinder. a i

In this drawing the letter a designates a frame on which is mounted a pair of cylinders b and'c respectively. Each cylinder is ofthe plates. Eachcylinder has its shaft provided with elevations and depressions and each cylinder carries one or more correspondingly shaped embossing plates 6 and f having bosses forming an integral'portion journaled in a slide 9 and each slide can be adjusted by means of a set screw it. The stem of the set screw can swivel in one end v of the slide 9 andjwhen actuated moves the slide and a cylinder. In this way each cylin' der can be set forward and back horizontallyto the thickness of the paper and also give proper engagement of the plates with the same. The cylinder 0 carries gripping devices (Z. whereby the paper is grasped and held while it isb-eing fed between the cylinders Each cylinder has a gear i nounted on its shaft and these gears can'be" rotated by a motor or in any other well known way.

The operation of the machine shown in Fig. 1, isas follows: Asheet of paper 7' is :grasped by oneofthe grippers of the cylin der 0 and carried downward between the means of the plates secured to the cylinders is embossed at the same time on both sides. The depressions or channels of each plate when fitted to the cylinder can be filled, as indicated in Fig. 3; by concentric strips 70 of elastic material. The strips of one of the cylinders, will then produce the impressions embossed by the other cylinder and vice versa. In this construction the embossing cylinders also constitute the impression cylinders.

s It will be seen that the elastic filling material of the cylinders will receive and produce the impressions by the co-action of the embossing plates with the paper. The channels and elevations are shown extending circumferentially about the cylinders but they 'could be formed to extendlongitudinally along the cylinders.

I claim 2' An embossing machine comprising a pair of cylinders, each cylinder having elevations and channels, means for driving the cylinders, a plate having corresponding elevations andchannels fitted to each of the cylinders for embossing characters on both sides of a sheet of paper, and elastic means carried in 'the cha'nnels and cooperating with the elevated portions of the plates for producing the jimpressions.

meeting faces of the two cylinders then by i In testimony';\vhereof I have hereunto set my hand in the presence of two subscribing witnesses; y

WILLIAM B. WAIT.

V Witnesses CHRIS. H. .ALMsTAnD'r, WILLIAMMILLER;

Copies of this patent may be obtained for five centseach, by ia ddr es sing the c 'j of ratents I l wa Sh1hgt 0n,D.c." I i I 

